Provisioning Mtie And Frequency Parameters - Symmetricom TSG-3800 Series User Manual

System Administrator's Reference
Provisioning Input Reference Signals
Example
Purpose: To display the last five 100-second phase measurements of the INP2.1
input with timestands (TS) on each measurement.
Command:
PHASE TS 2.1 T100 5
Display:
TSG->PHASE TS 2.1 T100 5
25OCT2000 13:24:56 Inp2.1 T100 6, -1
25OCT2000 13:26:36 Inp2.1 T100 6, -1
25OCT2000 13:28:16 Inp2.1 T100 6, -1
25OCT2000 13:29:56 Inp2.1 T100 5, -1
25OCT2000 13:31:36 Inp2.1 T100 4, 0
TSG->
To zero a selected input's phase measurement count, type:
PHASE «input» ZERO
where «input» is described in
selected reference).

Provisioning MTIE and Frequency Parameters

The TSG-3800 measures the Frequency offset and Maximum Time Interval Error
(MTIE) between each input and the clock in use. MTIE limits are expressed in
nanoseconds. Frequency limits are expressed in picoseconds/second. When an
input exceeds a specified threshold, the TSG-3800 enters the user-specified fault
mode.
You can specify two fault threshold limits (designated as L1 and L2) and fault modes
(Fail, Alarm, Report, and Ignore) for MTIE and frequency offsets. This allows one
threshold to serve as an early warning of failure. The fault thresholds and limits
chosen apply to the selected input.
For Frequency and MTIE measurements, you can set a threshold and fault mode for
each of three intervals (100, 1000, or 10000 seconds). If you do not define these
limits, the factory default values stored in non-volatile memory are used; see
Appendix B, FACTORY DEFAULT CONFIGURATION. For example, you can assign
a REPORT fault mode for a fractional frequency offset exceeding 1 x 10E
FAIL fault mode for an offset exceeding 1 x 10E
for each time scale (T100, T1000, or T10000) for both limits.
Recommendation: For consistency, Symmetricom recommends that
you use L1 for the more extreme limit and fault mode.
334 TSG-3800 User's Guide
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and press Enter
Table B-3
–7
. You can set an offset threshold
12778474-002-2 Revision F – March 2004
(default is the
–8
and a